.login-container{
    height: calc(100% - 50px);
    display: flex;
    /* 水平居中 */
    justify-content: center;
    /* 垂直居中 */
    align-items: center;
}
.login-dialog{
    width: 400px;
    height: 350px;
    background-color:  rgba(255,228,196,0.8);
    border-radius: 10px;
}
.login-dialog h3{
    padding: 50px 0;
    /* 文字水平居中 */
    text-align: center;
}
.login-dialog .row{
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.login-dialog .row span{
    width: 100px;
    font-weight: 700;
}
#username, #password { 
    width: 200px;
    height: 40px;
    font-size: 24px;
    border: none;
    outline: none;
    padding-left: 5px;
    border-radius: 10px;

}
#submit{
    width: 300px;
    height: 40px;
    color: white;
    background-color: rgb(255,165,0);
    border: none;
    border-radius: 10px;

}
#submit:active{
    background-color: grey;
}